i mean, there's this feeling, when we see these sinkholes, martin, as you know, around the country, that it's just like, oh, no one has any idea. they would have had to put foundations down and build an entire resort here and market it. did they have no ideas about holes? >> reporter: it is possible. i mean, first of all, in order to check for sinkholes, you have to use ground-searching radar, which is really not too cost effective and certainly isn't required or you have to drill a lot of holes every couple of feet. that also isn't cost effective. it's also possible, even after the construction, these buildings were about 15 years old, that the ground could have eaten away after that point. so it's really a combination, really, of the acidic matter, that's the water running underground, and the fact that you have a limestone bedrock here and they just don't mix well. it opens a cavern and you get the hole. >> just incredible that people -- you just don't know. martin savage, thank you. still to come, another politician finds himself the butt of a joke.